english 1. Insufficient bubble generation or excessive bubble size
Reason: Failure of aeration equipment, such as blockage of aeration head and damage of aeration pump, which results in the inability of air to enter the water body evenly and sufficiently, thus affecting the amount of bubble generation; improper adjustment of the air flow regulating valve, resulting in too little air entering the flotation tank; blockage or damage of dissolved air water releaser, which affects the normal release of dissolved air water, resulting in insufficient bubble formation or excessive bubble size.
Solution: Regularly check and maintain aeration equipment, clean aeration head, and replace damaged aeration pump; reasonably adjust the air flow regulating valve to ensure the appropriate amount of air; check the dissolved air water releaser, clean the blockage or replace damaged parts.
2. Poor floating effect of scum
Reason: The water quality of wastewater changes, such as pH value, suspended solids concentration, etc. beyond the appropriate range, affecting the adhesion effect of bubbles and suspended particles; insufficient or inappropriate flotation agent dosage, resulting in suspended particles not being able to combine well with bubbles; aeration time is too short, bubbles and suspended particles do not have enough contact time, and stable floating bodies cannot be formed.
Solution: Monitor wastewater quality, adjust pH value and suspended solids concentration to the appropriate range in time; determine the appropriate type and dosage of flotation agent through experiments, and adjust in time according to water quality changes; appropriately extend aeration time to ensure that bubbles and suspended particles are fully in contact.
3. Blockage during equipment operation
Reason: The influent contains a large amount of large particle impurities or fibrous substances, which are easy to accumulate in the aeration head, dissolved air water releaser, pipeline and other parts, causing blockage; excessive flocculant dosage, the generated flocs are too large, and it is easy to precipitate and accumulate inside the equipment, affecting the normal operation of the equipment.
Solution: Set up a grid or filter at the water inlet to intercept large particles and fibrous substances; reasonably control the amount of flocculant added to avoid excessive flocs; regularly clean and maintain the equipment and remove blockages in time.
4. Outlet water quality does not meet the standard
Reason: The flotation effect is not good, and some suspended particles cannot be effectively removed; there is leakage in the equipment, resulting in the mixing of treated water and untreated water; there are problems in the subsequent treatment links, such as filtration, disinfection and other links that fail to operate normally.
Solution: Analyze the reasons for the poor flotation effect and carry out targeted treatment, such as adjusting process parameters, checking the operation status of the equipment, etc.; check the sealing of the equipment and repair the leaking parts; check the equipment and process of the subsequent treatment links to ensure its normal operation.
